Which statement best describes the relationship between security and functionality?

• A. Security tends to impede functionality.
• B. Security tends to improve performance.
• C. Security has no impact on usability.
• D. Security always eliminates risk entirely.

Answer: (A)

Security design involves balancing protection with usable functionality. Every extra security control—like multi-factor authentication, encryption, strict access rights, or detailed auditing—adds processing steps, potential delays, or additional complexity. That overhead can slow down workflows, make interactions less smooth, and create compatibility challenges, so security often impedes functionality. It’s not that security never helps usability—when integrated well, it enables trusted features and reduces downtime from breaches—but the general relationship is a trade-off: more security can come at the cost of how smoothly the system operates. The other statements misrepresent this balance: security doesn’t usually improve performance, it isn’t without impact on usability, and it cannot eliminate risk entirely.